Surface tension experiment
Summary
TLDRIn this engaging science experiment by Kids Men's Science, host Ken demonstrates the power of surface tension. Using a glass filled to the brim with water and a credit card, Ken challenges viewers to predict how many pennies can balance on the card before it topples. The experiment shows that only two pennies can be stacked on the card when it's empty, but with the glass full, the card supports an impressive 14 pennies due to the water's surface tension. This simple yet fascinating experiment encourages viewers to try it at home and share their results, while also promoting scientific curiosity.
Takeaways
- 🔬 The experiment demonstrates the concept of surface tension.
- 👨🔬 Hosted by Ken from Kids Men's Science, the experiment is designed to be fun and easy.
- 💧 Materials needed include a cup, water, a credit or business card, and coins (specifically pennies in the video).
- 📏 The card should be made of hard plastic, similar to a credit card.
- 🤔 The viewer is encouraged to predict how many coins can be stacked on the card before it falls over.
- 🧐 The first experiment shows that without water, only two or three pennies can be stacked on the card.
- 💧 In the second experiment, water is filled to the rim of the cup, and the card is placed on top.
- 📈 The number of stacked pennies increases significantly when the card is on water due to surface tension.
- 🏺 Surface tension allows 14 pennies to be stacked on the card, surpassing the initial count without water.
- 👍 The video concludes with a call to action for viewers to try the experiment at home and share their results.
- 📺 The host reminds viewers to like and subscribe to the channel for more science experiments.
Q & A
What is the main topic of the experiment presented in the script?
-The main topic of the experiment is surface tension.
Who is the presenter of the experiment?
-The presenter of the experiment is Ken from Kids Men's Science.
What materials are needed for the experiment according to the script?
-The materials needed for the experiment are a cup, water, a credit card or business card, coins (specifically pennies in the script), and additional water for the second part of the experiment.
How many coins are needed for the experiment?
-About 10 to 15 coins are needed for the experiment.
What is the purpose of using the same size coin in the experiment?
-Using the same size coin ensures consistency and accuracy in the experiment's results.
What is the initial prediction made in the script about the experiment?
-The initial prediction is about how many coins can stack up on the card before falling over.
What happens in the first experiment when the glass is empty?
-In the first experiment, with an empty glass, the credit card can only hold two or possibly three pennies before falling over.
How does pouring water into the glass affect the experiment?
-Pouring water into the glass and placing the credit card on the rim allows for more pennies to be stacked on the card due to the effect of surface tension.
What is the role of surface tension in this experiment?
-Surface tension in the experiment helps hold the card down against the water's surface, allowing more pennies to be stacked on it.
How many pennies were successfully stacked on the card in the second experiment?
-In the second experiment, 14 pennies were successfully stacked on the card before the 15th penny knocked it over.
What is the call to action for viewers at the end of the script?
-The call to action is for viewers to try the experiment at home, comment on their results, and to click thumbs up and subscribe to the channel if they enjoyed the experiment.
Outlines
🔬 Surface Tension Experiment
In this educational video, host Ken introduces a simple and fun science experiment about surface tension. The necessary materials include a cup, water, a credit or business card made of hard plastic, and 10 to 15 coins, specifically pennies. The experiment is divided into two parts. Initially, Ken tests how many pennies can be stacked on the card when it's placed on an empty glass, which turns out to be a maximum of two. In the second part, after filling the glass to the brim with water and placing the card on top, Ken demonstrates that surface tension allows for a significantly higher number of pennies to be stacked on the card. The experiment concludes with 14 pennies stacked before the 15th causes the setup to topple. Ken encourages viewers to try the experiment at home and share their results, and reminds them to like and subscribe for more content.
Mindmap
Keywords
💡Surface Tension
💡Experiment
💡Coins
💡Credit Card
💡Water
💡Science
💡Prediction
💡Stacking
💡Hypothesis
💡Observation
💡Educational
Highlights
Introduction to a fun and easy experiment on surface tension.
Materials needed for the experiment include a cup, water, a credit card, coins, and additional water.
Demonstration of stacking coins on a card over an empty glass.
Observation that only two or three pennies can be stacked on the card over an empty glass.
Second experiment involves pouring water to the rim and placing the card on top.
Surface tension is the key factor allowing more coins to be stacked on the card over the water.
Successful stacking of 14 pennies on the card over the water-filled glass.
The 15th penny causes the card to tip over, demonstrating the limit of surface tension.
Different angle view showing the coins stacked on the outside of the cup.
Surface tension is explained as the force holding the card down against the water's surface.
Call to action for viewers to try the experiment at home and comment on their results.
Encouragement for viewers to like and subscribe to the channel for more science experiments.
The experiment showcases the practical application of surface tension in a simple and engaging way.
The experiment is designed to be educational and entertaining for viewers of all ages.
The use of common household items makes the experiment accessible and easy to replicate.
The experiment concludes with a reminder to subscribe and support the channel.
Transcripts
today's experiment is about surface
tension
welcome back to kids men's science my
name is ken and today's experiment is a
very fun and easy experiment so what i'm
going to show you is what you need how
to do it and the science behind it so
what you need is a cup and some water
and you need a little bit more water to
fill it up afterwards for the second
part of the experiment a credit card or
a business card some sort of hard
plastic there
and some coins and i'm using pennies so
you can use any kind of coin you want
just make sure the same size coin
and you need about 10 to 15 of those so
i'm going to come right back and show
you the science experiment and the
science behind it
so make a prediction on how many coins
can stack up on the card before falling
over
so the first experiment i have an empty
glass credit card half over and i'm
stacking the pennies on the outside and
you see it only holds two pennies maybe
i get three but i think two's the max so
the second experiment i've actually
poured the water all the way to the top
of the rim and place the credit card in
the same position and i'm gonna see how
many pennies i could stack on at this
time so therefore this time what's
happening is we're using surface tension
so there's two there's three we've
already passed up the last experiment
there's four
five
six so surface tension is really helping
out a lot here as we're seven
eight
nine
ten
eleven
twelve
thirteen it's really past that two the
first time fourteen
and
15 so actually 14 pennies because the
15th penny knocked it over
here's a different angle here you can
see the the pennies are on the outside
of the cup
surface tension is holding the card down
and um try this at home and make sure
you comment below how many coins or
pennies you can stack on there if you
enjoyed this experiment please remember
to click thumbs up and subscribe it
really does help our channel and thanks
for watching
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